using System;
using ChartDirector;

namespace CSharpChartExplorer
{
    public class posnegbar : DemoModule
    {
        //Name of demo module
        public string getName() { return "Positive Negative Bars"; }

        //Number of charts produced in this demo module
        public int getNoOfCharts() { return 1; }

        //Main code for creating chart.
        //Note: the argument img is unused because this demo only has 1 chart.
        public void createChart(WinChartViewer viewer, string img)
        {
            // The data for the bar chart
            double[] data = {-6.3, 2.3, 0.7, -3.4, 2.2, -2.9, -0.1, -0.1, 3.3, 6.2,
                4.3, 1.6};

            // The labels for the bar chart
            string[] labels = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
                "Aug", "Sep", "Oct", "Nov", "Dec"};

            // Create a XYChart object of size 500 x 320 pixels
            XYChart c = new XYChart(500, 320);

            // Add a title to the chart using Arial Bold Italic font
            c.addTitle("Productivity Change - Year 2005", "Arial Bold Italic");

            // Set the plotarea at (50, 30) and of size 400 x 250 pixels
            c.setPlotArea(50, 30, 400, 250);

            // Add a bar layer to the chart using the Overlay data combine method
            BarLayer layer = c.addBarLayer2(Chart.Overlay);

            // Select positive data and add it as data set with blue (6666ff) color
            layer.addDataSet(new ArrayMath(data).selectGEZ(null, Chart.NoValue
                ).result(), 0x6666ff);

            // Select negative data and add it as data set with orange (ff6600) color
            layer.addDataSet(new ArrayMath(data).selectLTZ(null, Chart.NoValue
                ).result(), 0xff6600);

            // Add labels to the top of the bar using 8 pt Arial Bold font. The font
            // color is configured to be red (0xcc3300) below zero, and blue
            // (0x3333ff) above zero.
            layer.setAggregateLabelStyle("Arial Bold", 8, layer.yZoneColor(0,
                0xcc3300, 0x3333ff));

            // Set the labels on the x axis and use Arial Bold as the label font
            c.xAxis().setLabels(labels).setFontStyle("Arial Bold");

            // Draw the y axis on the right of the plot area
            c.setYAxisOnRight(true);

            // Use Arial Bold as the y axis label font
            c.yAxis().setLabelStyle("Arial Bold");

            // Add a title to the y axis
            c.yAxis().setTitle("Percentage");

            // Add a light blue (0xccccff) zone for positive part of the plot area
            c.yAxis().addZone(0, 9999, 0xccccff);

            // Add a pink (0xffffcc) zone for negative part of the plot area
            c.yAxis().addZone(-9999, 0, 0xffcccc);

            // Output the chart
            viewer.Image = c.makeImage();

            //include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("clickable", "",
                "title='{xLabel}: {value}%'");
        }
    }
}

